SHIPS' LIGHTS AND REGULATIONS 201 By day: Two black balls or shapes, each. 2 feet in diameter, in a vertical line not less than 6 feet apart, to be placed where they can best be seen. 22 Would you regard these lights and shapes as signals of distress? No, They must be regarded as signals that the vessel showing them is not under command, and is therefore unable to get out of the way. This is also the case with the lights and shapes shown by vessels engaged in laying or picking up telegraph cables. 23. If you were in a steamship, proceeding under sail only, what signal must you show in the daytime? A black ball 2 feet in diameter, placed forward where it can best be seen. 24. Under the same conditions, what would you do at night? Exhibit lights for a sailing ship. 25. If in a steamship your engines break down at night, what change would you make in your lights? Take down tfhe masthead light or lights; if not under command I would hoist the two red lights, leaving the side-lights in their places if making headway, but taking them in, if not. 26. If you see a single white light, what vessel does that denote the presence of? * It may be a vessel at anchor less than 150 feet in length; the stern light of a vessel I am overtaking; the masthead light of a steamer whose side-lights are not visible; a sailing trawler engaged in trawling; a fishing vessel with her gear foul of some obstruction.; or a pilot vesseL 27. You see a flare-up light; what .does that indicate? It may be a pilot vessel on her station; a ship signalling for a pilot; a vessel trying to attract attention (Art. 12); a vessel fishing with nets or trawls. 28. You see two white lights vertical; what vessel may that be?, It may be a steamer approaching end on with two masthead-lights; a steamer engaged in towing with her side-lights not visible; a vessel of 150 feet or upwards at anchor end on; a drift net vessel engaged in fishing end on; or, a steam trawler approaching within 2 points of being end on. H*